Support event hook arguments in Dispatcher

spec/uh/wm/dispatcher_spec.rb

@@ -57,6 +57,14 @@ module Uh
             expect { dispatcher.emit :hook_key }.not_to raise_error
           end
         end
+
+        context 'when args keyword argument is given' do
+          it 'calls hooks with given args' do
+            dispatcher.on(:hook_key) { |arg1, arg2| throw arg2 }
+            expect { dispatcher.emit :hook_key, args: %i[arg1 arg2] }
+              .to throw_symbol :arg2
+          end
+        end
       end
     end
   end